Night shifter here: One large coffee, milk with five (yes, I said five) sugars for the subway ride in, and another when I go on my break at around 0200. If it's not too bad a night I'll get a small with milk and three, and if I'm not feeling so hot it'll be a large tea with milk and four. If I'm busting my butt and super thirsty I might grab a Coke/Pepsi to go with the second coffee. My rule is that when I do my 0500 cares, I have to throw out whatever I haven't finished so I have a chance of going to sleep.
So take note: raising your kids on carob and tofu juuuuuust might not result in a lifetime of good eating habits. Sorry, mom.